Earlier quoted context omitted.
Losing money doesn't destroy wealth. It just transfers it from one place to another.
If you buy a stock for 100 dollars, and due to a series of bad results which led to price adjustments, the stock is now worth 1 dollar, you lost 99 dollars. Nobody else picked up those 99 dollars. Asset depreciation is a fundamental concept that you should be familiar with, as it influences several aspects of your personal finance: https://www.investopedia.com/terms/d/depreciation.asp
Except the person who sold the stock for $100.